Public bug reported:
After installing Postfix 3.1.4, email delivery to Dovecot stops working.
In the Postfix log, I get:
Jan 5 19:50:45 michaelmarley postfix/smtpd[30558]: connect from
<redacted>[<redacted>]
Jan 5 19:50:45 michaelmarley postfix/smtpd[30558]: B3A2C1801FA:
client=<redacted>[<redacted>]
Jan 5 19:50:45 michaelmarley postfix/cleanup[30582]: B3A2C1801FA:
message-id=<<redacted>>
Jan 5 19:50:45 michaelmarley postfix/qmgr[30460]: B3A2C1801FA:
from=<<redacted>>, size=8706, nrcpt=1 (queue active)
Jan 5 19:50:45 michaelmarley postfix/smtp[30584]: fatal: unknown service:
/var/spool/postfix/private/dovecot-lmtp/tcp
Jan 5 19:50:45 michaelmarley postfix/smtpd[30558]: disconnect from
<redacted>[<redacted>] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 commands=7
Jan 5 19:50:46 michaelmarley postfix/local[30583]: warning: private/lmtp
socket: malformed response
Jan 5 19:50:46 michaelmarley postfix/master[30458]: warning: process
/usr/lib/postfix/sbin/smtp pid 30584 exit status 1
Jan 5 19:50:46 michaelmarley postfix/master[30458]: warning:
/usr/lib/postfix/sbin/smtp: bad command startup -- throttling
Jan 5 19:50:46 michaelmarley postfix/local[30583]: B3A2C1801FA:
to=<<redacted>>, relay=none, delay=1.5, delays=0.44/0/0/1, dsn=4.3.0,
status=deferred (unknown mail transport error)
If I re-make the removed lmtp->smtp symlink and revert the configuration
change made in master.cf, email delivery works correctly again. It
looks like the smtp binary might act differently based on if it is
called as "smtp" or "lmtp".
** Affects: postfix (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1654453
Title:
LMTP delivery to Dovecot stops working in 3.1.4-1
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